Bood transfusion is a process of blood transfer or blood components from one person (the donor) to another person (recipient). Sometimes it is necessary that the blood loss immediately be compensated or to temporarily reinforce the resistance. Sometimes half a liter or a liter of blood in the vein given on time is a lifesaver. Blood transfusions can be used in the treatment of serious anemia or thrombocytopenia caused by a blood disease. People who suffer from hemophilia or sickle cell anemia usually need frequent blood transfusion to be performed.
Blood type is a blood based classification on the presence or absence of inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins or glycolipids, depending on the system of blood groups, and some of these antigens are present on the surfaces of other types various tissues cells. As we mentioned in main “Blood Transfusion Information” article many historical failures led to this today’s known blood group classification system. Needless to say how much this helped blood transfusion procedure.